Inline Network Tester
Contents
1. ahn023s bmp Figure 2 4 Link Configuration Details Health The Health option enables you to check the health of frames the PC has sent since you started AutoTest and isolate PC related problems There are two types of Health screens one that displays activity since the last AutoTest Figure 2 5 and one that relates to what is going on now In other words statistics accessed from a device related menu Figure 2 3 are cumulative as in Figure 2 5 whereas statistics you see from the main menu are a NetTool Menus 2 NetTool Menus snap shot of what is going on now for a given device Read Health later in this chapter fal Health x Shorts a REH Jabbers 6 g Collisions 293 1 Figure 2 5 Health Details ahn026s bmp Addresses Used NetTool displays the best discovered name on the PC as well as the IP IPX and MAC address of the PC ahn025s bmp Figure 2 6 Addresses Used Servers Used This area shows the network resources the PC is using including HTTP SMTP POP WINS Nearest NetWare DHCP and DNS servers as well as the router gateway El Servers Used KL WMFirst Resp Best DILBER IPA 18 6836c96b77b2 Encap 882 3 MAC 00a8cg6b77b2 Intel El DNS Server ahn014s bmp Figure 2 7 Servers Used NetTool Menus Setup NetTool Icon Select the NetTool F middle icon to access Setup options The NetTool Setup screen displays Figure 2 8 eg NetTool x A settings m IP2. If after 3 queries there is no response this problem is listed in the problem log Remedy Check connectivity from the PC to the network drop TCP IP Explanation NetTool has determined that the PC is not properly configured Remedy Access PC network properties and correct the IP subnet mask Problem Router issued ICMP redirect Hosts or Explanation NetTool has determined that the PC is not properly configured Remedy Access PC network properties and correct the IP address You should also make sure the DHCP server is giving the correct addresses 3 5 NetTool Users Manual Explanation NetTool has detected a duplicate IP address configured on a remote device You should never have duplicate IPs running on the network This problem prevents the PC from connecting to the network until it is resolved Remedy Identify at least one of the devices and change its address to a valid one that is not being used Host Configuration Explanation The PC is dynamically configured to find DHCP servers and none are found Remedy Check the router and the DHCP server itself to make sure they are running Either could be misconfigured Check connectivity to the DHCP server Explanation The DHCP server in question is not detecting an address and is provisioning a duplicate Remedy This could be caused by a statically configured PC Find the statically configured PC on the network and changes its IP address to a vali
3. Personalization Get a free holster for your NetTool by visiting the NetTool web site and registering your NetTool 1 3 NetTool Users Manual Software Version To determine the version of the software in your NetTool highlight the Setup icon and press the Select middle button Highlight About NetTool and press Select again The software version number is displayed on the screen as SW Rev x x Read the NetToo Quick Reference Guide P N 1560839 and the NetTool Blaster program helptext for instructions on updating NetTool Supplied Equipment The following equipment is supplied with the NetTool Four 4 AA batteries P N 1560231 Serial Cable P N 1541340 RJ 45 Cable P N 642774 Wiremap adapter P N 1563930 CD ROM Disk P N 1560821 NetTool Users Manual NetTool Blaster update software and NetTool Toolkit make full use of NetTool options 00000 1 4 Optional Equipment The following optional items can be purchased through Fluke Networks or your local distributor O A C Adapter P N 1556346 O Battery Charger P N 1572191 O Rechargeable Batteries P N 1572184 Getting Assistance For operating assistance in the USA call 1 800 283 5853 For a complete list of contact numbers check Appendix B or visit the Fluke Networks web site at www flukenetworks com Overview Getting Acquainted Getting Acquainted Use four 4 AA size batteries supplied P N 1560231 or the optiona
4. THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FLUKE NETWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE OR THEORY Since some countries or states do not allow limitation of the term of an implied warranty or exclusion or limitation of incidental or consequential damages the limitations and exclusions of this warranty may not apply to every buyer If any provision of this Warranty is held invalid or unenforceable by a court or other decision maker of competent jurisdiction such holding will not affect the validity or enforceability of any other provision 08 01 Fluke Networks Inc Fluke Europe B V PO Box 777 P O Box 1186 Everett WA 98206 0777 USA 5602 BD Eindhoven The Netherlands Table of Contents Chapter Title 1 O Eegen Introduction ce Register e EE e CC EE Supplied Eouipment kv Optional Equipment uuerssnsnsnnnsnnsnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnennnnnn nn Getting Assistance comence rio lec Getting Acquainted AA Buttons a al Indicado EE EE Navigation e NetTool LED IMdlcato Sisi dana Link Collision Error LED Utilization LED Serial Connection NA O O EE Single ended Mode Akkuen Inline Mode 1 0 2 cecccccccccneesseceecc
5. Ethernet standard on two pairs of unshielded twisted pair wiring It is a star topology with a maximum cable length of 100 meters The maximum network diameter is 205 meters with two class II repeaters C 1 NetTool Users Manual 802 2 This IEEE standard specifies Logical Link Control LLC which defines services for the transmission of data between two stations at the data link layer of the OSI model 802 3 Often called Ethernet this IEEE standard governs the Carrier Sense Multiple Access Collision Detection CSMA CD networks Typical cabling standards are 10BASE T 10BASE2 and 10BASE5 Access Method The set of rules by which the network determines what node has access to the network The two most popular access methods are Carrier Sense Multiple Access Collision Detection Ethernet and token passing Token Ring and ARCNET Anomaly An impedance discontinuity causing an undesired signal reflection on a transmission cable AppleTalk AppleTalk is a networking protocol primarily used for communications between Macintosh computers and Apple printers The AppleTalk network is segmented into zones C 2 ARP Address Resolution Protocol A member of the TCP IP protocol suite ARP is the method by which a station s MAC address is determined given a station s IP Internet Protocol address Attenuation A reduction in the strength of a signal the opposite of gain Bandwidth Bandwidth is the rate at which da
6. Uptime The amount of uninterrupted time that a resource such as a print server has been available C 9 NetTool Users Manual Transceiver In Ethernet networks a transceiver is used to couple electrical signals to and from an adapter to the transmission media In ThinLAN and 10BASE T networks the transceiver is integrated directly onto the network adapter card Twisted Pair A pair of wires that are twisted together to minimize crosstalk Crosstalk is minimized with twisted pair wiring by canceling the magnetic fields generated in each of the twisted wires Twisted pair cable UTP or STP is typically made up of several twisted pairs of wires UTP Unshielded Twisted Pair Cable that is twisted by pairs but not shielded This minimizes crosstalk by canceling the magnetic fields generated in each of the twisted wires but only when a single twisted pair is used for Transmit or Receive A A C Adapter AutoTest 2 6 B Backlight Enabling 1 5 Batteries Inserting 1 5 Rechargeable 1 4 Battery Life Maximizing B 1 Buttons and Indicator Lights 1 5 C Cable Status Testing Cable Serial 1 4 CD ROM Contents 1 4 D Devices Key 2 6 Duplex Settings 2 5 Index E Email Problems 3 8 Environmental Requirements A 2 Equipment Optional 1 4 Supplied 1 4 F Features 1 3 Firmware version 1 4 H Health Netwo
7. an exhaustive troubleshooting guide Link Connectivity Problems These problems involve cabling or cabling properties and are classified as follows Explanation The network is running at 10 Mbps and the PC is running at 100 or vice versa This problem prevents connection to the network Remedy Correct the speed mismatch by making sure both devices are running at the same speed Problem Pair mismatch Explanation Link pulse is being sourced on the same wire pair by both sides This problem does not prevent connection to the network NetTool automatically swaps the pairs to correct this problem Remedy Check cabling It could be plugged into an uplink port Also there could be a crossover cable between NetTool and the device Explanation One side is running at half duplex and the other is running full duplex This problem prevents connection to the network Remedy Reconfigure the devices so the duplex settings match Explanation The polarity of the detected link pulse is reversed Remedy There is most likely a pair reversed Check cabling to ensure the pairing is corrected Problem Level low Explanation The link pulse detected from a device is low This can negatively affect performance Remedy Replace the NIC card or change hub switch ports This could also be caused by excessive cable attenuation 3 3 NetTool Users Manual Explanation The wire pair used for transmit 1 2 or 3 6 has an ope
8. is required More NetToo Setup Options Other setup options include Unwanted Protocols IP Setup Ping List Editor About NetTool Select Unwanted Protocols to specify protocols that NetTool will warn you are present on the network This helps in situations like a network wide migration away from certain protocols If NetTool sees them it reports them in the Problem Log Choose IP Setup to configure your NetTool to ping read the Toolkit IP Setup section for details Access the Ping List Editor to view edit or add to the lists of preset IP addresses that you have previously downloaded using NetTool Toolkit The editor enables you to add to an existing list or edit an existing IP address within a list Select one of the lists by highlighting the list name then pressing Select Select Add New Device to add an IP address to that list To edit an existing address select it then change any of the octets within the address Choose Language Select a language from the available choices Keeping your NetTool updated ensures access to new languages as they become available NetTool Menus 2 NetTool Menus View software and hardware details Select About NetTool to view the serial number MAC address and revision information Be sure to record the serial number and MAC address of your NetTool for future reference NetTool Menus Network The Network icon displays on the left or right depending on where you connecte
9. menu to view the Problem Log The Problem Log Figure 3 2 provides a concise list of all problems detected from physical layer to application layer problems Ce AutoTest gaa Protocols El key Devices 52 fit Toolkit Figure 3 1 Problems ahn300s bmp Each type of problem has an icon associated with it For example health related problems are represented by a Chapter 3 Problems stethoscope 24 icon As you see problems you will become familiar with the associated icons that display Problem Log x Pom 115 11 87 a50 Unwanted protocols WINS protocols seen on network ahn301s bmp Figure 3 2 Problem Log More importantly you should understand that just because something is listed in the Problem Log does not necessarily indicate a catastrophic problem For example Unwanted Protocols are listed in the Problem Log but they are not a major impediment to the operation of the PC on the network 3 1 NetTool Users Manual Problem Display The problem display area consists of these elements from left to right Problem Type Problem Severity Problem ID and Problem Text Sample problem gt En 111 9 55 El Unable to connect to Dns server IP 229 196 196 614 Problem type P Naming O Health Util El Server El Host gt Cable Fl Connectivity N Link 4 Configuration Network Problem Severity Low Medium 101 High 3 2 Problem ID A problem ID is asso
10. operates on top of the Internet Protocol and can manage virtually any network type Source Address The address of the station originating a frame Split Pair The error of using wires from two different twisted pairs This error cancels the crosstalk elimination characteristics of twisted pair wiring and produces crosstalk Use a single twisted pair for Transmit and another twisted pair for Receive to minimize crosstalk Subnet A subnet is a section of the TCP IP network Each subnet has a unique subnet number and is connected to a router which enables connection to other subnets Subnet Number The subnet number is programmed into the subnet router and follows the network number in an IP address TCP IP Transmission Conirol Protocol Internet Protocol TCP IP is the protocol suite originally developed by the Advanced Research Projects Agency ARPA to interconnect a research network It later evolved into the Internet The TCP IP is an open standard not owned by any particular organization The term TCP IP is often used to refer to the entire suite of related protocols that includes IP FTP Telnet RIP Topology Topology is the organization of network components The topology of Token Ring network components is a ring Transport Transport refers to the physical method by which data is transmitted e g Ethernet Token Ring etc Different physical network hardware and cable layout are required for different transports
11. server Explanation The Simple Mail Transfer Protocol SMTP server information is either not configured or configured incorrectly on the PC The server itself could be down as well 3 8 Remedy Access NetTool s Key Devices list to view information about this server and then make corrections within the mail setup area of the PC Problem Unable to connect to POP2 server Explanation The PC cannot find the POP2 server it is configured to find The server itself could be down as well Remedy Access NetTool s Key Devices list to view information about this server then make corrections within the mail setup area of the PC Problem Unable to connect to POP3 server Explanation The PC cannot find the POP3 server it is configured to find The server itself could be down as well Remedy Access NetTool s Key Devices list to view information about this server then make corrections within the mail setup area of the PC Problem Unable to connect to IMAP server Explanation The PC cannot find the IMAP server it is configured to find The server itself could be down as well Remedy The IMAP server information is either not configured or configured incorrectly on the PC Access NetTool s Key Devices list to view information about this server Problems 3 Network Problems Printer Explanation NetTool is detecting that the PC is not able to connect the configured IP printer server The server itself could be dow
12. 1 Link and Cable Information 2 5 Troubleshooting 3 3 U Unwanted Protocols Updating NetTool 1 4J 1 10 Users Manual 1 4 V Version number software 1 4 W Wiremap Adapter 1 4 NetTool Users Manual
13. FLUKE Inline Network Tester Users Manual PN 1560821 June 2000 Rev 2 3 02 2000 2002 Fluke Networks Inc All rights reserved Printed in USA All product names are trademarks of their respective companies LIMITED WARRANTY amp LIMITATION OF LIABILITY Each Fluke Networks product is warranted to be free from defects in material and workmanship under normal use and service The warranty period is one year and begins on the date of purchase Parts accessories product repairs and services are warranted for 90 days This warranty extends only to the original buyer or end user customer of a Fluke Networks authorized reseller and does not apply to disposable batteries cable connector tabs cable insulation displacement connectors or to any product which in Fluke Networks opinion has been misused altered neglected contaminated or damaged by accident or abnormal conditions of operation or handling Fluke Networks warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non defective media Fluke Networks does not warrant that software will be error free or operate without interruption Fluke Networks authorized resellers shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Networks Warranty support is available only if product is purc
14. NetTool Overview Service Identification Telco Token Ring Ethernet Health Broadcast Error meters Utilization Cable Test Wiremap PC Configuration Link Config Health Addresses Used Servers Used Ping Single Device Ping Ping Catalog Reporter Get Live Reports Get Saved Reports Link Configuration Link ID Rx Pair Advertised Speed Actual Speed Level Polarity Advertised Duplex Actual Duplex Services Key Devices IP Servers IPX NetWare Servers NetBIOS Servers Printers Routers Problems The Problem Log provides a concise list of all problems detected from physical layer to application layer Single Ended Mode This mode enables you to check a network drop or network device for activity determine its speed and duplex settings confirm healthy frames are being received from the network and to check connectivity to the network when plugged into a hub or switch Inline Mode Inline mode occurs when NetTool is plugged in between two devices simultaneously like a PC and the network Inline Pro The Ping and Reporter features are permanently activated in the factory Trial uses are provided if you have not purchased the option Quick Reference Guide Read the NetTool Quick Reference Guide P N 1560839 that came with your purchase to become familiar with and quickly begin using your NetTool Upgrade Get updates to NetTool software when they are released via the internet
15. Printers Microsoft DLC HP DLC 1 9 NetTool Users Manual NetTool Updates etc Get updates to NetTool software when they are released To check the version you have select the NetTool Setup icon then select About NetTool To find out if there is a new version access www flukenetworks com nettool and navigate to the update page Check the software file displayed in that area and determine if it is a later version gt To update your NetTool follow the web instructions to download the file After you download the file to a PC connect supplied serial cable as shown in Figure 1 5 ahn019f eps Figure 1 5 Serial Cable Connection ay PC NetTool Link Utility Zi Updating NetTool is a simple process that requires you to download or otherwise make accessible to your PC the latest NetTool firmware file You can then run the update and link utilities that came on CD ROM or from the web There are two PC based software programs that install from the CD ROM NetTool Blaster and NetTool Toolkit When you put the CD ROM that came with your purchase in your PC a navigation screen displays Install both link utility programs by running the setup program After you install the programs run them from the Start Programs Fluke Networks menu Follow the directions given by the online help of both programs Overview PC NetTool Link Utility NetTool Blaster After you have the la
16. Setup m A Settings FAB O Meters Auto Off Contrast Y Set Time 10 20 06 E Ping List Editor Za Language Set Date 68 13 61 D About NetTool ahn027s bmp Figure 2 8 NetTool Setup Restore Defaults ahn029s bmp Figure 2 9 NetTool Settings Access Settings Figure 2 9 to Check the battery level Eu The battery level indicator displays while you navigate through the Setup screens as long as you are running on battery power Select feet or meters 2 3 NetTool Users Manual Enable disable Auto Off If you leave the unit on Language without touching any keys for more than 10 minutes Auto Off automatically shuts the unit down to save battery power Adjust the display contrast Highlight and press Select to decrease contrast or to increase it Set Time Date Highlight each number comprising the time or date display and change each number individually using the up or down arrow key Use the right or left arrow key to move the cursor over Press Select after you change all the numbers NetTool Time format is HOUR MINUTES SECONDS Date format is MONTH DAY YEAR The clock does not self adjust for local time zones changes NetTool Blaster allows you to set the time for the NetTool and even synch it with the PC clock check the Help for Blaster for details Select Restore Defaults to restore all factory settings If you have not changed any settings NetTool displays Defaults Restored and no action
17. TCP IP or AppleTalk Primary Domain Controller A device that manages the common security policy and user account databases for a group of NetBIOS servers The election protocols are such that the primary domain controller has a tendency to become the master browser Remote Collision A collision that occurs on the other side of a repeater Since a 10BASE T Hub is a multi port repeater with a segment dedicated to each station 1OBASE T collisions are remote collisions Repeater A repeater is a layer 1 device that regenerates and retimes frames C 7 NetTool Users Manual Router or Gateway A router is a device that connects subnets together Any packets destined for a device on a different subnet are given the subnet s router Routing between subnets can involve multiple routers A user s machine must be configured to know the IP address of the router for its subnet in order to communicate with machines on other subnets Mis identified gateways are a common problem for manually configured IP settings RJ 45 Connector A modular connector used for UTP wiring The RJ 45 connector has eight conductors to accommodate four pairs of wires and it has become the dominant connector used in Ethernet and Token Ring UTP installations Router A router is a network layer device that connects networks using like network layer protocols Routers can span different network topologies For example a router can interconnect two IP subn
18. alkaline batteries or optional rechargeable NiMH batteries 12 5 cm x 7 8 cm x 4 3 cm 0 21 kg 0 46 lbs One year Extended warranty available 2 on each side Link Utilization Collision and Error A 1 NetTool Users Manual Environmental Requirements Operating Temperature Non Operating Temperature Approvals Approvals Accessories Electromagnetic Interference Certifications Connection to public telephone network A 2 10 C to 30 C with up to 95 Relative Humidity 10 C to 40 C with up to 75 Relative Humidity 20 C to 60 C The Fluke NetTool has the following approvals European Standard EN 60950 CSA CAN C22 2 No 950 and UL 1950 The optional Universal AC Adapter for NetTool has UL CSA and TUV approvals or other approvals valid in the USA Canada and Europe The Fluke NetTool complies with European standard EN 61326 Class B Complies with European CE directive EMC directive 89 336 EEC and low voltage directive 73 23 EEC NetTool should never be connected to the public telephone network Service and Repairs To locate an authorized service center visit us on the World Wide Web at www flukenetworks com or call Fluke Networks using the phone numbers listed USA 1 888 99 FLUKE 1 888 993 5853 Canada 1 800 36 FLUKE 1 800 363 5853 Europe 31 402 678 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 446 4519 For operating assista
19. also highlight the device in the upper right or left to change what NetTool is viewing in real time and the direction to from network or to from PC This enables you to make comparisons For example you may see a high percentage of network utilization and the PC is also registering high utilization You can segment what the PC is doing to contribute to that large number by highlighting Util and pressing Select broadcasts errors etc Highlight the reading below a meter and press Select to view the data expressed as per second frames broadcasts errors etc or as a percentage of current activity Note If you exit the Health display and return later without powering down NetTool displays the last saved settings If you power down NetTool while viewing the Health display the readings will not be saved Access Setup screen and select Restore Defaults to restore factory settings Ping Note The Ping option only works in single ended mode If you want to ping and are in inline mode you will see Y Ping Disconnect one of the Ru 45 cables from the NetTool and then rerun AutoTest In order to use all of the functions of the Ping option make sure you install the NetTool Toolkit software on your PC so NetTool can communicate with your PC via the serial connection IP Setup Currently by default and out of the box NetTool uses DHCP to configure itself If you have DHCP on 2 9 NetTool Users Ma
20. ariations can cause slight differences in characteristic impedance for the same cable type Client A client is a computer that make requests of a server A client has only one user a server is shared by many users Collision A collision is the result of two or more nodes transmitting at the same time Excessive collisions are most often caused by a problem with the physical media Crossed Pair A wiring error in twisted pair cabling in which a pair on one connector of the cable is wired to a different pair on the other end of the cable Crosstalk Crosstalk is electrical interference generated by signal coupling between wires in a multiwire cable CSMA CD Carrier Sense Multiple Access with Collision Detection In CSMA CD each node or station has equal access to the network Before transmitting each station waits until the network is not busy Since each node has equal access to the network a collision two stations transmitting at the same time can occur If a collision occurs the affected nodes will wait a random time to retransmit Ethernet uses the CSMA CD access method C 3 NetTool Users Manual dBm Decibels below 1 mW 1 milliwatt The logarithmic measure of the ratio of the output power of a signal to an input signal of 1 mW DECnet Digital Equipment Corporation s set of communication protocols for networking computers Destination Address The address of the station receiving a frame DNS Doma
21. ceeneesseceecceesuansseceeecensuansseceeeeeeeaageseseseseneaensesenensneanaeses NetTool Users Manual Cable Testing nee sagen nee eaa ea a Eara iE areia arae A Service Identification ooonnnnndnnnnnnn nnnnnnnnnnannnin ae aaa aaa aaaea iaaea aaai Services Discovered cscsesseeseeeseseseseseeesesesecceeseseceseeeseeeseeeseeesessseeesseeseeeseesseees NetTool Updates etc PC NetTool Link Utility 2 Neritool MOUS E TRIER ARE PANNE REERFEEREEEEREEEHEEPFREEEREEFEETREEHFOREEFERFIENPEEDEURSEHENTNEPEFERFEEREREPFSERERFAFR INTFOCGUCUOM EE NetTool A CN Re Men s GE Link ConfiguratiON oooonccccncconnccnnnccnnnccnnncnnancnnnnnc nan cnr arca cnn el EEN Addresses Used cccccccccoonncccnnncccocooconenononononocononnnonononnrennnnnonnnnnnrrnnnnnnnononnrrnnnnnononanos Servers Usd iii NetTool Menus Setup NetTool Icon More NetTool Setup Options coooconcconnnicnnccnnnccnoncccnnnnnano non nnnnnn corran NetTool Menus Network Link and Cable Information Duplex Settings ida NetTool Main Men D e RE Problem CG PROLOGIS EE Key DEVICES casi geesde Pinging a Single Devlce nono n cnn c narran rra cnn 3 Probleme iciccacecsaniaiedcnccasiessscoesceccussatssacatecaecdassvescusvauyicnsisceundunescsssausuagauswiketsusiuansainnseausaes il Contents continued Introduction Problem Displayi 2 r ee ee ee en Link Connectivity Problems Network Problems occccccccoooncccncnnnccononocononnnononononenonononon
22. ces For manual configuration make sure any IP address you assign to your NetTool is correct for Selecting Manual configuration enables you to the subnet you are on statically assign to your NetTool an IP address that SR i complies with your network s addressing scheme Pinging a Single Device This applies if your network does not use DHCP or if From the main menu select Toolkit then Ping to access for whatever reason you want to manually configure it NetTool s ping function You can ping one IP address or a set Ping Catalog of addresses that you define using NetTool Toolkit 2 10 NetTool Menus 2 NetTool Menus gt To ping a single device select Add m Ping Default Router E 129 196 196 078 New Device E 123 196 196 001 E 216 115 105 017 E 129 129 110 001 ahn216s bmp Enter the address and press Select NetTool pings the device and adds it to a running list up to 10 of recently pinged devices The IP address pinged longest ago will drop off the list after the tenth address Add New Device 190 000 000 006 Select Update X Cancel ahn217s bmp x Ping Results ba IP 129 196 196 878 Packets 32 bytes Sent Revd Lost bogs If you need to ping 3 Last Min Mas w any address highlight b Y ve it and press Select ahn218s bmp Ping Catalog The Ping Catalog function enables you to uses lists of IP addresses grouped based on your network configuration You create the grou
23. ciated with each problem that helps you reference the problem Check the online Users Manual to see a text description linked with the numeric code This area contains a concise description of the problem found Problem Text You can think of problems fitting into one of two categories Link Connectivity or Network level Link Connectivity problems relate to cabling or cabling properties Network problems are those involving PC network configuration settings or PC to server interactions Generally network problems you encounter in setting up or changing a PC s connection to the network can be resolved by checking the network settings area on the PC In single ended mode NetTool can only report Unwanted Protocols and link connectivity level problems Inline mode is required for all other problems Read Chapter 1 Overview for an explanation of these two modes The great thing about NetTool is that it enables you to see which side the problem lies between the PC and NetTool or between NetTool and the network itself Whether it is a Problems 3 Link Connectivity Problems cabling problem or a protocol mismatch NetTool helps you isolate a problem and keep things running The following section lists the problems that NetTool can detect Each problem is explained in more detail if needed and a possible Remedy is listed Every network is complex and the remedy listed is meant to help you start troubleshooting This is not
24. d and unique IP address Merging two unique networks into one could lead to this 3 6 type of problem It could also point to a DHCP server problem or an implementation bug Name Resolution Problem No DNS server found on network to resolve Explanation The PC is configured to use DNS Domain Name Server and none can be found Remedy Make sure the DNS server is up and running Access PC network properties and make sure settings are correct Problem DNS resolution failed Explanation There are multiple DNS servers on the network and the PC is configured for the wrong one Remedy Find out the correct DNS information access PC network properties and configure the PC with that information Problem WINS resolution failed Explanation The DNS server cannot determine the NetBIOS names Remedy You can manually fix this problem in the DNS configuration section of network properties Problems 3 Network Problems Problem Incorrect WINS server XXX XXX XXX XXX Explanation There are multiple WINS servers on the network and the PC is configured for the wrong one Remedy Find out the correct WINS information access PC network properties and configure the PC with that information Problem No WINS server found on network to resolve Explanation The PC is configured to use WINS Windows Internet Name Service and none can be found Remedy Make sure the WINS server is up and running Access PC network proper
25. d the cable Highlight the Network E3 icon and press Select to view network activity Figure 2 10 Network x JL Link Config Ca Health asa Protocols EE Segment ID ahn200s bmp Figure 2 10 Network Menu Link Config described in the PC section Health described in the PC section Protocols described in the Protocols section Segment ID If there are multiple Ethernet drops knowing the Segment ID tells you which jack to use for the correct configuration Link and Cable Information Notice the link and cable information between the device icons in Figure 2 11 Note the duplex settings and link speeds that are underlined The underline signifies a determined or negotiated result while the non underlined value signifies the advertised value ahn020s bmp Figure 2 11 Top Area Duplex Settings NetTool provides duplex settings for each device advertised or collision determined Duplex mismatches can impede communication between devices PR Full Duplex zk Half Duplex Link Level and Polarity Polarity is displayed via waveform shaped icons as shown in Table 2 1 2 5 NetTool Users Manual Table 2 1 Link and Polarity Level Indicator Definition N Normal level normal polarity Vv Normal level reverse polarity n Low level normal polarity ve Low level reverse polarity Link level is displayed by the height of the waveform Cable Status 142 Soe See 2 6 ET 2 6 NetToo
26. dress uniquely identifies the station Master Browser The Master Browser maintains the browse list a list of all servers in the master browser s domain or workgroup MBPS Millions of bits per second See BPS Multicast Packets that are directed to a group of nodes rather than to a single node or all nodes This is contrasted to a broadcast packet which is directed to all nodes NEXT Near end crosstalk crosstalk between two twisted pairs measured at the same end of the cable as the disturbing signal source Appendices C Glossary NIC Network Interface Card A network interface card is the adapter card that plugs into a computer to provide a network connection Node Number Node number identifies the device of interest NVP Nominal Velocity of Propagation The speed that a pulse travels along a cable expressed as a percentage of the speed of light in a vacuum Packet A group of bits in a defined format containing a data message that is sent over a network Ping Packet Internet Groper ping is a common method of accessing devices on a network to see if they are active Ping sends a packet from one device attempts to bounce it off another device and listens for a reply A successful ping indicates that the network path to that device including the routers in between are up and functioning Protocol A language that a device uses to communicate on a network Examples of protocols are
27. e IP address on a network C 5 NetTool Users Manual IPX Internetwork Packet Exchange IPX is the network layer protocol for Novell s NetWare protocol suite Jabber A frame greater than the maximum legal size greater than 1518 bytes with a good or bad frame check sequence In general you should not see jabbers The most likely causes of jabbers are a faulty NIC driver or perhaps a cabling problem LAN Local Area Network A physical network technology used over short distances up to a few thousand meters to connect many workstations and network devices using a communication standard Token Ring or Ethernet for example Late Collision A collision that occurs after the first 64 bytes in a frame In 10BASE T networks late collisions will be seen as frames with a bad FCS Causes of Late Collisions are a faulty NIC or a network that is too long A too long network is one in which the end to end signal propagation time is greater that the minimum legal sized frame Layer One of seven levels in the Open Systems Interconnection OSI reference model See OSI C 6 Link Pulse A single bit test pulse that is transmitted at least every 150 milliseconds during idle periods on 10BASE T link segments to verify link integrity Manufacturer Prefix The standard partial address used to identify a particular manufacturer The prefix of the address is predefined uniquely for each manufacturer while the remainder of the ad
28. e Mode Note NetTool must sense traffic on a network or device so it can supply protocol or health information 1 7 NetTool Users Manual Inline means NetTool is plugged in between two devices simultaneously such as a PC and network hub Use this mode to verify that a PC will communicate properly with the network Cable Testing Using Cable AutoTest you can check cable length detect split pairs or use the wiremap adapter supplied P N 1563930 to verify pin to pin continuity from the near to the far end of a cable Cable AutoTest gt Plug the cable to test into the jack on either side of the NetTool Power up Om AutoTest NetTool AutoTest flashes Press Select ahn015s bmp Highlight the Spool icon and press Select to see cable status NetTool detects cable length opens shorts and split pairs ahn016s bmp 2 Open S rt 26 Open S ft gt Open 57ft a Open 57ft 1 3 4 7 This applies for patch 1 8 cables as well except you would plug both ends in to the NetTool and then press Select Wiremap gt To use wiremap attach the wiremap adapter to the far end of the cable Power up NetTool AutoTest flashes Press Select Highlight the Wiremap icon and press Select ahn018s bmp Overview Service Identification Service Identification Plug NetTool in to any RJ 45 wall jack gt Power up NetTool and select AutoTest Doing so shows you what service
29. ets For a router to pass traffic unlike a bridge it must be configured for the desired protocol Routers are more difficult to configure but offer greater security C 8 Runts Typically defined as a Ethernet frame which is less than 64 bytes Depending on what device is counting the runts the frame check sequence may be good or bad SAP Service Advertising Protocol A NetWare protocol used to request and broadcast information about file servers print servers and other services on a network Short Frame A frame less than the minimum legal size less than 64 bytes with a good frame check sequence In general you should not see Short Frames The mostly likely cause of a Short Frame is a faulty adapter card or driver Signal Noise Ratio The ratio of worst case received signal level to noise level measured at the receiver input expressed in dB The S N ratio may be expressed as NEXT dB Attenuation dB provided idle channel background noise is low Higher S N ratios provide better channel performance Appendices C Glossary SNAP Subnetwork Access Protocol An IP protocol that is an extended version of the IEEE LAN logical link control LLC frame SNAP provides access to additional protocols and allows vendors to create their own protocol sub types SNMP Simple Network Management Protocol Designed by the Department of Defense and commercial TCP IP implementors SNMP is part of the TCP IP protocol suite SNMP
30. etwork Check cabling Change the NIC card or switch hub port For utilization reduce the number of stations in the collision domain Install a switch Use a tool like the Fluke LanMeter OneTouch Network Assistant or Protocol Inspector to determine the top contributors to further segment this network Problems 3 Network Problems NetWare El Explanation In order for the PC and network to communicate they both must be configured for the same frame type 802 3 raw 802 2 Ethernet Il and SNAP You can configure a client for a single frame type A server can optionally be configured to recognize some or all frame types Remedy Use NetTool to determine the frame types used If the client is suspected determine the frame type of the client Determine frame types enabled on server Explanation After a PC boots up it sends a broadcast to initiate a connection with the closest server If after three attempts there is not response this problem is listed in the problem log Remedy Ensure that GNS Get Nearest Server is enabled on the server and check connectivity to routers by doing an IPX ping with a Fluke LanMeter or OneTouch Network Assistant Check the Key Devices list If the routers are listed then NetTool is seeing the routers but the PC is not You might suspect a bad NIC card or NIC card configuration file Explanation During boot up a PC running IPX sends a query to the router asking for its network number
31. hased through a Fluke Networks authorized sales outlet or Buyer has paid the applicable international price Fluke Networks reserves the right to invoice Buyer for importation costs of repair replacement parts when product purchased in one country is submitted for repair in another country Fluke Networks warranty obligation is limited at Fluke Networks option to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period To obtain warranty service contact your nearest Fluke Networks authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke Networks assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke Networks determines that failure was caused by neglect misuse contamination alteration accident or abnormal condition of operation or handling or normal wear and tear of mechanical components Fluke Networks will provide an estimate of repair costs and obtain authorization before commencing the work Following repair the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges FOB Shipping Point
32. he network Figure 2 20 NetTool always attempts to display the highest level address possible for that device be ita NetBIOS name DNS name IP address or Mac address This helps you determine which services or servers exist on the network The list of devices can be invaluable in troubleshooting because it verifies whether a device is seen on the network This helps pinpoint where a configuration problem may exist NetTool Toolkit Select Toolkit to access Health statistics Ping features and the Reporter option 2 8 Ca Health G Ping amp Ping Catalog nes Om AutoTest Problems 4 asa Protocols El Key Devices 30 ur Toolkit amp Reporter Figure 2 21 Main Menu ahn210s bmp ahn211s bmp Figure 2 22 Toolkit Menu Health This feature enables you to segment problems After you select Health from the main menu you can view the health of frames and simultaneously check each side of the connection for healthy frames in real time Figure 2 24 Use the navigational buttons and press Select on any item within the screen to change the view For example selecting Util changes the view to broadcast traffic collision levels or errors coming from either device to which NetTool is connected NetTool Menus 2 NetTool Menus Figure 2 23 Health Toolkit x Eos Health G Ping Ping Catalog amp Reporter ahn212s bmp ahn213s bmp Figure 2 24 Health Display You can
33. in Name Services provides a mechanism that allows users to remember logical machine names rather than IP addresses DNS provides mapping between a machine name e g www fluke com and its IP address 9 XXX XXX XXX XXX EIA568 Electronic Industries Association Commercial Building Telecommunications Wiring Standard Specifies maximum cable lengths installation practices and performance specifications for generic building wiring C 4 Encapsulation Encapsulation is the method of placing one protocol into another protocol s format For example in a Novell Ethernet environment there are four different methods to encapsulate IPX in Ethernet 802 3 frames 802 3 raw 802 2 Ethernet Il and SNAP Ethernet Ethernet is a 10 Mbps topology that runs over thick coax thin coax twisted pair and fiber optic cabling systems EtherTalk EtherTalk is the AppleTalk network protocol running over the Ethernet network transport Fast Ethernet Industry standard terminology for 100Base T Industry groups do not agree on using the term to refer to 100VG AnyLAN some call 100VG AnyLAN a Fast Ethernet technology while others do not FCS Frame Check Sequence A field transmitted in LAN frames that encodes error checking information Appendices C Glossary Frame A frame is a unit of data transmission divided into groups of bits The header and a check sequence form the frame Full Duplex 10Base T and 100Base TX network opera
34. is active on the jack being tested Telco Shows the tip and ring pins in the case of voice being carried on an RJ 45 cable A Caution Although NetTool can detect Telco signals it is not designed to be used on the public telephone network Disconnect immediately NetTool cannot reliably discover Telco information with the AC adapter or serial cable connected It also detects ISDN signals but cannot reliably detect the S T interface Token Ring Indicates the presence of a Token Ring network Ethernet Tells you if the jack is hot what s on the other end hub switch etc as well as the speed and duplex level and polarity Also shows the segment ID so you can pick the right network to hook up to a PC if there are multiple jacks Services Discovered Table 1 2 lists the services detected by NetTool Device Services Servers Table 1 2 Services Discovered IP Servers IP services discovered DHCP DNS email SMTP POP IMAP Web HTTP HTTP proxy WINS NetWare Servers IPX service types Nearest File Server File Server NetWare Access server Time Synchronization Server NetWare Directory Server NDS NetWare Management Server NetBIOS Servers Primary Domain controllers Backup Domain controllers Master Browsers Routers IP Routers RIP IGRP EIGRP OSPF IRDP RIP2 IPX routers RIP Printers IP Printers IP Printers IP Print Spoolers IPX Printers IPX Print services DLC
35. l rechargeable batteries P N 1572184 as shown optional charger PN 1572191 ahn011f eps Figure 1 2 Battery Compartment The optional AC adapter can be used to power the unit and conserve battery power The adapter plugs in to the left side of NetTool Read the NetTool Quick Reference Guide that came with your purchase to start using NetTool right away You can also access www flukenetworks com nettool for the latest news on NetTool troubleshooting tips and service information Buttons and Indicators Power press once to turn on or off Backlight Once NetTool has power you may turn on the backlight by pressing the power button quickly Turn it off by pressing the Power button quickly again Navigation Buttons After powering up NetTool just lt _ gt press the buttons that make up the oval under the screen and highlight an icon or menu item you wish to L view up down right left As you ahno12f eps navigate the highlighted area flashes Also if a list is longer than can be displayed use the up and down buttons to scroll through it AutoTest flashes Figure 1 3 on power up Press the Select button to begin You can also navigate to the NetTool Setup screen by highlighting and selecting the en NetTool Setup icon NetTool Setup Select AutoTest to begin Figure 1 3 NetTool First Screen 1 5 NetTool Users Manual 1 6 Note If you have not registered your NetTool you
36. l shows you the status of the cables connected to it below the Setup icon and detects whether the cables are straight or swapped NetTool sees a swap cable problem and swaps it internally allowing you to troubleshoot past a simple swap cable problem NetTool Main Menu The main menu items are your starting point View NetTool s discovery screens to resolve connectivity problems The results are displayed in the top area and within the discovery screens accessed from the main menu AutoTest gt Plug NetTool inline between the PC and the network gt Powerupthe PC gt Select AutoTest The sample results shown in Figure 2 13 reflect NetTool connected inline between a PC and a network hub Qe Hutolest Problems 15 se Protocols El Key Devices 61 Hr Toolkit ahn201s bmp Figure 2 12 AutoTest NetTool Menus 2 NetTool Menus ahn202s bmp Figure 2 13 AutoTest Results Select the PC or Network icon for more link configuration information health Segment ID and for PCs address and server information Problems Problem Log Ki En m 4116 15 21 Unwanted protocols WINS protocols seen on host Cat 168 9 28 DNS resolution of ahn203s bmp ahn204s bmp Figure 2 14 Problems Figure 2 15 Problem Log Om AutoTest asa Protocols E Key Devices 52 Yt Toolkit Select Problems to view the Problem Log The Problem Log provides a concise list of all problems detected fro
37. m physical layer to application layer problems You can think of problems fitting into two categories Link Connectivity level and Network level Read Chapter 3 for full descriptions of problems and general troubleshooting tips Protocols L S Protocols TAX Less Pr 1 EN Om AutoTest Netllare Problems 15 NetBIOS o Protocols Apple Key Devices 61 Other Wt Toolkit ahn205s bmp ahn206s bmp Figure 2 16 Protocols Figure 2 17 Protocol List Select Protocols to view the protocols seen on the desktop or network Figure 2 17 This can be very useful for finding protocol configuration mismatches View details by highlighting any protocol listed and pressing Select Figure 2 18 shows an example of IP Protocols The icons listed on each side represent the device i e PC network and whether that given protocol is running on that device Table 1 2 lists the protocols that NetTool can discover IP Protocols Web HTTP Protocol IPy4 Error AS clon MP ahn207s bmp Figure 2 18 IP Protocols 2 7 NetTool Users Manual Key Devices El IP Servers 4 E Netware Servers 1 E Ze Om AutoTest Problems 4 asa Protocols ney Devices cb H Wt Toolkit NetBIOS Servers 1 DI Routers 11 amp Printers 6 ahn208s bmp ahn209s bmp Figure 2 19 Key Devices Figure 2 20 Key Device List Select Key Devices to view all the servers routers and printers NetTool has found on t
38. n This problem prevents connection to the network Remedy Isolate the cable and replace it Network Problems This section lists all the network problems with a brief explanation of each problem Also listed are some basic corrective steps you can take for each problem if applicable Keep in mind this is not an exhaustive list of troubleshooting steps If you know what you need the network administrator for the network you are troubleshooting can provide you with a lot of information to correct these problems Health La Explanation Short Frame is a frame smaller than the minimum legal size less than 64 bytes after the preamble with a good frame check sequence Jabber is defined as frames longer than the maximum legal size greater than 1518 bytes Frame Check Sequence FCS Bad means the header information is probably correct but the 3 4 checksum calculated by the receiving station does not match the checksum appended to the end of the frame Remedy Check NIC card or NIC driver file This could also be caused by cabling or grounding problems Explanation Excessive utilization collisions is defined as a collision rate of greater than 5 percent or a utilization rate of greater than 70 percent Remedy If this problem exists everywhere on the network it is most likely caused by excessive traffic If it is isolated to one PC you can suspect cabling For collisions suspect excessive traffic Reduce traffic on the n
39. n as well Remedy Access NetTool s Key Devices list to view a list of IP printers and correct the problem in the printer setup area on the PC Explanation The print spooler configuration on the PC is either incorrect or the spooler itself is down or offline Remedy Check the spooler itself and then access NetTool s Key Devices list to view a list of IP devices and correct the problem in the printer setup area on the PC Unwanted protocols when enabled The purpose of the Unwanted Protocols feature is to enable you to find protocols that you do not want on the network For example if you have migrated away from NetWare on the network NetTool will flag a device that still has NetWare configured on it Problem NetBEUI detected Problem WINs detected Problem NetWare detected Problem MB master browser election detected 3 9 NetTool Users Manual 3 10 Appendices Appendix Title Page A lee TEE A 1 B Basico Maintemence sic He ns eier en anna ee B 1 a a etna e eg el eid eon wate C 1 C Glossary General Specifications Media Access 10Base T and 100Base TX Cable Tests Internal wiremap cable length opens shorts and split pairs Ports Shielded Hub NIC connector RJ 45 Serial port customized 2 5mm stereo input jack Interface Push button navigation of icon menu driven view Battery Dimensions Weight Warranty LED Indicators 4 Appendix A Specification Removable
40. nce in the USA call 1 800 258 5853 Appendix B Basic Maintenence Maximizing Battery Life The life of batteries is strongly influenced by the care that they receive The greatest enemy of batteries is heat When using the optional rechargeable batteries avoid charging them when they are hot The battery life will also be shortened if you frequently leave the NetTool in a hot place such as a car on a warm day and then charge the batteries immediately upon returning to your office Cleaning the Display Clean the screen by wiping it gently with a soft cloth or tissue moistened with isopropyl alcohol B 1 NetTool Users Manual B 2 10BASE2 Sometimes called ThinLAN or CheaperNet 10BASE2 is the implementation of the IEEE 802 3 Ethernet standard on thin coaxial cable The maximum segment length is 185 meters 10BASE5 Sometimes called ThickLAN 10BASES is the implementation of the IEEE 802 3 Ethernet standard on thick coaxial cable The maximum segment length is 500 meters 10BASEF A point to point fiber link This is the draft specification for IEEE 802 3 Ethernet over fiber optic cable Appendix C Glossary 10BASE T 10BASE T is the implementation of the IEEE 802 3 Ethernet standard on unshielded twisted pair wiring It is a star topology with stations directly connected to a multi port Hub and it has a maximum cable length of 100 meters 100BASE TX 100BASE TX is the implementation of the IEEE 802 3u
41. nual your network there is no need to further configure NetTool Choose Manual or DHCP IP configuration by selecting the IP Setup icon KX wrench and accessing the IP Setup screen You can also do this using NetTool s Setup function If you select Manual then go back to DHCP the IP address is acquired after you select that option and any subsequent time you access the IP Setup screen NetTool uses DHCP protocol to acquire an IP address then uses the address according to DHCP rules Using the down arrow key highlight the address you wish to configure in this case NetTool then press Select On the Edit screen use the up and down arrow keys to enter each number of the IP address one at a time right and left arrow keys move the cursor over until you enter the whole address Press Select after you have entered a valid IP address for your NetTool NetTool then lists the updated address with the subnet and router IP addresses In like manner you will need to configure the subnet mask and router addresses NetTool assists you by entering the first parts of those in IP Setup addresses based on common addressing rules O DHCP Fango i NetTool 129 196 196 878 NetTool IP Address Make the final corrections to those addresses as you Subnet 255 255 000 000 129 196 196 004 did the NetTool IP address before you proceed with Router 129 196 000 001 Saleck Update other tasks X Cancel Note hn214sbi ahn215s bmp a y en
42. ononennnonononnronennnonononnrennnnnnnoninnnens FAG un MEN INGEVY E LE E ee ee Ee Ee ei TEE Host Configuratio M se nenion e inaa aa aaa a rea aaa raaa A aaa E a a a aaa aa Name ResolUtiO iia NET e EE Appendices Le EE B Basic Maintenence SN E EAE E E E A T E Index iii NetTool Users Manual List of Tables Table Title Page 1 1 NetTool Overview nnnnnsessssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenenn 1 3 1 2 Services Discovered conncnininninnnnninininiii 1 9 2 1 LinKk and Polarity Levels ii 2 6 NetTool Users Manual vi List of Figures BN d E ele EE 2 Battery Compartment eee eeeeeeeeeeeeeaeeeeaeeeeaeeeeaeeeeaeeseaeeeeaeeseaeeseaeeseaeeseeeseneeseeeeee 23 NetToolFirstiScie n ais dais 4 NetTool LEDS oia irc ire iiai 5 Serial Cable Connect T A O 2 2 NetTool Menus ici 2 3 Station MENU eiae ae dicas 2 4 Link Configuration Details nn 2 5 E ut EE 2 6 Addresses AAA E SONES A 2 8 NetTool Getup A oann na aaraa aa aaa aa aaan A A aa daa Aa aE na S aaa a G 2 9 Ree le EE 2 10 Network Menu 22 We TOPA ea EE M2 ss AUTO OSU EE vil NetTool Users Manual 2 15 2 16 2 17 2 18 2 19 2 20 2 21 2 22 2 23 2 24 3 1 3 2 Problem Log Protocols Protocol List IP Protocols Key Devices Key Device E Main Menu Toolkit Menu Health health Ile ergoen ebe Eeer edel eine
43. ping using NetTool Toolkit the PC based software that came with your purchase You can keep lists of common groups of IP addresses i e Marketing Customer Support First Floor etc Check out the online help for NetTool Toolkit to learn how to set up and use the Ping List feature After defining and uploading the lists using NetTool Toolkit PC software NetTool displays the catalogs using the names you gave them Select Ping Catalog from the Toolkit menu Select one of the catalogs by highlighting it then pressing Select The list of IP address displays with a status icon to the left Ping results display when you highlight and select one of the IP addresses To ping the list of IP addresses again highlight and select Restart Health G Ping 4 Ping Latalog amp Reporter ahn219s bmp EE First Floor Second Floor ahn220s bmp x Ping Results IP 129 196 196 661 Packets 32 bytes Sent Revd Lost Loss Last Min Mas Av H H 6 H ms Done ahn221s bmp 2 11 NetTool Users Manual Check NetTool Setup to see how to edit a list of addresses Running Bil Ping Complete Problem with the ping Corresponds with the severity level of problems Low one packet lost 1 Medium two packets lost 111 High three packets lost or device not found 2 12 Introduction Select Problems Figure 3 1 from the main
44. rk 2 8 NetTool Users Manual Problems 3 4 Holster 1 2 Icon Network 2 5 pola Icons Top Area2 1 Inline Mode Setup 1 7 K Key Devices 2 8 L LEDs Link Collision and Error 1 6 Link Level 2 5 Polarity 2 5 Link and Cable Information 2 5 M Maintenance Instrument B 1 Manual Users 1 4 Menu Main 2 6 Menus Navigation 2 1 Mode Single Ended and Inline 1 7 N Name Resolution Problems 3 6 Navigation Menus 2 1 NetBIOS Problems 3 7 NetTool Main Menu Menus 2 1 NetTool Optional Equipment 1 4 Supplied Equipment 1 4 NetWare Problems 3 5 Network Health 2 8 0 Optional Equipment 1 4 P Polarity Link 2 5 Power Supply Optional Equipment 1 4 Printer Problems 3 9 Problem Log 3 1 Problems 2 7 Viewing 2 7 Protocols Unwanted Q Quick Reference Guide 1 4 R Rechargeable Batteries Optional Equip ment 1 4 Registration 1 2 Results AutoTest 2 7 Index continued a Screen Cleaning Segment ID 2 5 Serial Cable 1 4 Service and repairs B 1 Service Identification List of Services 1 9 Short Frames Troubleshooting 3 4 Single Ended Mode Setting up 1 7 Software version 1 4 Supplied Equipment 1 4 T TCP IP Problems 3 5 Testing Cables 1 8 Top Area Icons 2
45. s Problems Problem Log viii Chapter 1 Overview Introduction The Fluke Networks NetTool Inline Network Tester hereafter referred to as NetTool is a unique handheld device that combines cable network and PC z configuration testing into a single handheld unit NetTool Si D e was designed specifically to speed your frontline network ME Tesla troubleshooting moves adds changes and desktop to network connectivity work NetTool is available in two models NetTool Inline and Inline Pro version NetTool Inline features include a Single ended mode Q Inline mode ahn010f eps Figure 1 1 NetTool 1 1 NetTool Users Manual Inline Pro Features include a Single ended mode a Inline mode Q Reporter Q Ping These features are discussed throughout this manual in their pertinent sections You can also access www flukenetworks com nettool to access software updates documents and the latest news on NetTool 1 2 Register Now Get a free personalized holster for your NetTool by visiting www flukenetworks com nettool and registering your NetTool today Follow the instructions to get a company or personal name embossed on the holster Upon registering your NetTool Fluke Networks will send the personalized holster free of charge Table 1 1 shows an overview of what NetTool provides Overview Introduction Table 1 1
46. s for each side Overview 1 NetTool Modes Green utilization levels below 40 Yellow levels between 40 and 70 Red levels greater than 70 Serial Connection Connecting NetTool to a PC via the customized serial cable supplied PN 1541340 allows you to e Download software Enable options e Save screens Use NetTool Blaster and NetTool Toolkit programs supplied on the CD ROM Read the Reporter and Ping Catalog sections for more information NetTool Modes NetTool has two RJ 45 jacks one on each side of the unit Plug it in and turn it on either between two devices like a hub and a PC or directly into a wall plate to check a network drop NetTool can be used in two modes Single Ended Mode and Inline Mode Single ended Mode Note To optimize discovery connect NetTool with the device like a PC off turn NetTool on press AutoTest then turn the device on Plug an RJ 45 cable into a network drop or a single network device such as a hub PC server or printer Run AutoTest by pressing the Select button The NetTool screen displays icons for NetTool itself and the other device Use this mode to quickly prove a network drop or network device is active determine its speed and duplex settings confirm healthy frames are being sent and check connectivity to the network when plugged into a hub or switch Read Chapter 2 NetTool Menus for more information on the menus and icons Inlin
47. ta can be transmitted over a channel measured in bits per second For example Ethernet has a 10 Mbps bandwidth and FDDI has a 100 Mbps bandwidth Actual throughput is almost always less than the theoretical maximum BPS Bits per second A measure of speed or raw data rate Often combined with metric prefixes as in kbps for thousands of bits per second or Mbps for millions of bits per second Bridge Switch A device that links two or more networks that use the same OSI Data Link protocol A bridge evaluates source and destination addresses to pass only frames that have a destination on the connecting network Appendices C Glossary Broadcast A message that is addressed to all stations on a network For Ethernet networks the MAC broadcast address is FFFFFFFFFFFF Broadcast Storm A situation in which a large number of stations are transmitting broadcast packets This typically results in severe network congestion This problem is usually a result of a misconfiguration Bus Topology A bus topology is a network architecture in which all of the nodes simultaneously receive network traffic Ethernet is a bus topology Byte A collection of bits A byte usually contains 8 bits Characteristic impedance Characteristic impedance is the opposition resistance and reactance to signal propagation on a cable It depends on the physical properties of a cable which are determined at the time of manufacture Manufacturing v
48. test NetTool firmware downloaded and saved locally NetTool Blaster enables you to gt Update NetTool click the Update button Get screen shots download screens by clicking NetTool Blaster s Capture button Add your own splash screen by clicking the Personalize button Set Date Time If you have purchased options and need to enter the option key click Options Change Language as translations become available choose one of the associated option buttons Set Communication Parameters NetTool Toolkit Use NetTool Toolkit on your PC in order to take full advantage of NetTool Pro features NetTool Toolkit enables you to Generate reports Download reports Configure ping parameters Configure ping catalogs Select Help from the top menu of either program and follow the instructions to use NetTool Blaster or Toolkit NetTool Users Manual Introduction Navigating within NetTool is easy and fast If a link pulse is detected NetTool searches for devices on the network and then displays them on its easy to read display Navigation is based the icons and menu below them NetTool Menus There are two sets of menus to assist in troubleshooting the top area Figure 2 1 containing icons and the main menu Figure 2 2 below the icons ahn020s bmp Figure 2 1 Top Area Chapter 2 NetTool Menus The three top area icons take you through menus corresponding with the three elemen
49. ties Problem PC WINS incorrect Explanation NetTool sees a WINS server on the network but not the one configured on the PC in question Remedy View the details of the WINS server by accessing the Key Devices list Change the PC configuration to match NetBIOS Explanation There are specific names and privileges needed for access to domains or workgroups The name is incorrectly configured or privileges are not set up Remedy Make sure what domain names and privileges are required and correct the PC configuration Explanation These domain controllers act as gatekeepers for domain access If one of them isn t found on the network then no access can be granted Remedy Various Explanation Only one unique NetBIOS name is allowed on a domain Remedy The name specified on the PC needs to be changed to eliminate duplication 3 7 NetTool Users Manual Problem PC involved in MB elections Explanation NetTool sees packets from the PC that are generating master browser elections on the network This can be the source of excessive traffic and slow performance Remedy Take preventive measures within the PC configuration to stop the PC from generating Master Browser elections Web Explanation The standard proxy port is 1080 The HTTP port is 80 on the server Remedy Correct the naming or port assignments in the setup area of the web browser software Email Problem Unable to connect to SMTP mail
50. tion using a switching Hub to establish a point to point connection between LAN nodes that allows simultaneous sending and receiving of data packets Full duplex performance is twice that of half duplex performance A 10Base T full duplex network is capable of 20 Mb s data throughput while a full duplex 100Base TX network is capable of 200 Mb s throughput Half Duplex Network operation is one direction at a time only either sending or receiving data packets but not both at the same time Hops Most commonly defined as the number of routers traveled by a frame to reach its destination Hub Repeater Today most often referred to in 1OBASE T networks A 10BASE T Hub is essentially a multiport repeater Hub with each segment dedicated to a single 10BASE T connection ICMP Internet Control and Message Protocol A communication protocol used by every device that uses IP ICMP reports errors that occur during the delivery of packets on the network IP Internet Protocol IP is the network layer protocol for the TCP IP suite IP Address An IP address is a series of four numbers separated by dots each of which is between 0 and 255 An IP address must be unique to a machine or the network will not be able to properly deliver network information to that machine The address is made up of a network number a subnet number and a node number IP Network Number The network number consists of the first two numbers of a devic
51. ts of the connection a gt PC NetTool Setup gt Network The main menu takes you through various discovery screens that reflect NetTool s connection to devices In addition link information is displayed between the device icons and cable information is displayed below the NetTool Setup icon see Link and Cable Information later in this chapter 2 1 NetTool Users Manual NetTool Icon NetWork Icon Main Menu Hut Problems 1 asa Protocols El Key Devices 11 Yit Toolkit ahn021f eps Figure 2 2 NetTool Menus NetTool Menus PC Connect NetTool to a PC and press the PC Ak icon The icon displays on the left or right depending on where you connected the cable Figure 2 3 displays the list of PC information you can access El Station x SL Link Config 24 Health se Protocols EE Addresses Used El Servers Used ahn022s bmp Figure 2 3 Station Menu After the PC sends frames you can scan the PC configuration by navigating through the menu This view of the PC is invaluable in troubleshooting networked PCs 2 2 Link Configuration The Link Config screen Figure 2 4 provides the following key link pulse information about the device e g the PC to which NetTool is connected Receive Rx Pair Polarity Advertised Speed Advertised Duplex Actual Speed Actual Duplex Level Riverted Sod d r ee Kit L TeaM Level kei ormal Advertsd Duplex Full Actual Duplex Half
52. will see a Registration Reminder Screen followed by a screen that displays how many option trials remain Be sure to install NetTool Blaster NetTool Toolkit installs as part of the NetTool Blaster install process the PC based software that came with your purchase on CD ROM check the online help for those programs for more information These software programs enable you to pass data between a NetTool and a PC Press Select middle button once to view an item and related screens Within a screen that is scrollable use the up and down keys to scroll Within a menu screen the right button returns you to hei The right and left buttons act as a page up left or page down right if there are more items to view Press the Up key to navigate to the top right and press Select to close the current screen Certain screens also display a tool icon left of the E4 Select this icon to access the configuration screen for that function NetTool LED Indicators NetTool has two tricolor LED indicators on each side to reflect link and health information at a glance SN Problems tA a Protocols El Key Devices 12 WE Toolkit A A ahn014f eps Figure 1 4 NetTool LEDs Link Collision Error LED Green Link pulse present Yellow Collisions occurring Red Errors occurring FCS jabbers etc Utilization LED The bottom tricolor LED indicates utilization percentage
Download Pdf Manuals
Related Search